From DNC fraud lawsuit on Facebook:
Defendants DNC and Debbie Wasserman Schultz have a deadline of September 21, 2016 to respond to our First Amended Complaint (docket entry 8).
They were served with process on August 31, 2016 (docket entries 41 and 42). They have 21 days to respond according to Federal Rule of Civil Procedure 12, also known as FRCP 12: